let name = '小明'
let age = 18
let flag = true

function sum(num1, num2) {
	return num1 + num2
}

if (flag) {
	console.log(sum(20, 30));
}

export {
	flag, sum
}

export let num1 = 1000;
export let height = 1.88

export function mul(num1,num2){
	return num1 + num2
}

const moren = "北京市"
export default moren
